package com.ny.bemo;

public class  BanKPay implements  Pay{
    double m =100;
    @Override
    public void pay(double money){
        if(m<money){
            System.out.println("你的余额不足");
        }
else {
    System.out.println("你消费了"+money);
    m = m - money;
    System.out.println("你的余额为"+m);
        }
    }
}
